function makevisible(cur,which) {
	if(document.getElementById) {
		if (which==0) {
			if(document.all)
				cur.filters.alpha.opacity=40;
			else
				cur.style.setProperty("opacity", .4, "");
		} else {
			if(document.all)
				cur.filters.alpha.opacity=100;
			else
				cur.style.setProperty("opacity", 1., "");
		}
	}
}